Questions tagged [boot]
Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.
2,955
questions
534
votes
33
answers
2.0m
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My computer boots to a black screen, what options do I have to fix it?
I am trying to boot Ubuntu on my computer. When I boot Ubuntu, it boots to a black screen. How can I fix this?
Table of Contents:
If you are trying to install Ubuntu
If you have a dual boot system
...
52
votes
20
answers
318k
views
Unable to boot into Windows after installing Ubuntu, how to fix?
I installed Windows on my computer, followed by an installation of Ubuntu. However, now I'm unable to boot into my Windows install.
What can I do to fix this?
643
votes
24
answers
748k
views
How do I free up more space in /boot?
My /boot partition is nearly full and I get a warning every time I reboot my system. I already deleted old kernel packages (linux-headers...), actually I did that to install a newer kernel version ...
15
votes
7
answers
75k
views
Can't boot into Ubuntu in Windows 10 / Ubuntu dual boot
I installed Ubuntu on a Dell XPS 13 laptop that had Windows 10 preinstalled on it. I installed it from a USB flash drive on a partition.
When I boot my computer I can only boot into Windows 10 and ...
452
votes
8
answers
1.9m
views
How do I change the GRUB boot order?
I have both Windows 7 and Ubuntu installed on a shared machine. Because a lot of the non-developers use Windows, I'd like to change the boot order to make it easier for them.
Currently the boot order ...
144
votes
20
answers
544k
views
"dev/sda1: clean, ..." This message appears after I startup my laptop, then it won't continue booting
dev/sda1: clean, 552599/6111232 files, 7119295/24414464 blocks
After I turn on my laptop this message appears. The system never boots, the message just stays there.
58
votes
3
answers
243k
views
How do I remove "Ubuntu" in the bios boot menu? (UEFI)
See this ubuntu appears in BIOS menu (UEFI)
I have this on my Lenovo s205 too.
Is there some way to remove "ubuntu" from the menu? I don't even have it installed anymore.
379
votes
7
answers
957k
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fsck error on boot: /dev/sda6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY
I dual boot Ubuntu and Windows 7.
I was browsing on FireFox in Ubuntu and all of a sudden I get some error message, so I rebooted.
Now when I try to boot into Ubuntu I get this message:
fsck from ...
447
votes
10
answers
1.4m
views
How to get to the GRUB menu at boot-time?
My system is not dual-boot, I run a standard Ubuntu desktop system "on the metal" (I think running it in a VM is the same).
Pressing c while booting does not cause the GRUB menu to appear (which I ...
20
votes
2
answers
41k
views
ACPI error on every boot
I recently switched from Windows 10 to Ubuntu. So far so good, but I get these errors on every boot. I was not getting these when on Windows 10 (not sure if it is because Windows didn't have these ...
91
votes
1
answer
248k
views
How do I boot into a root shell?
When booting to the graphical desktop fails we sometimes are recommended to boot into a "root shell" or to boot in "recovery mode".
How do I do that?
247
votes
13
answers
1.4m
views
Uninstall GRUB and use Windows bootloader
I have Windows 8 pre-installed, and then I installed GRUB with Ubuntu. Ubuntu is not my thing, so now I want to remove it along with GRUB. From what I have learned, with UEFI, GRUB does not overwrite ...
130
votes
3
answers
546k
views
How to create UEFI-only bootable USB live media?
Having live media that can boot both ways can be a problem when installing Ubuntu onto currently available Windows 8 computers.
In other words the key advantage to creating UEFI-only bootable USB ...
255
votes
16
answers
450k
views
How do I disable X at boot time so that the system boots in text mode?
Is it possible to disable X at boot time? I'm setting up a server so it would be nice if it wouldn't load the graphical interface every time I boot.
46
votes
1
answer
339k
views
How to install the Boot-Repair tool in an Ubuntu live disc?
When the bootloader (GRUB) is broken, I cannot access neither Ubuntu nor Windows.
I heard that an easy solution to fix this is to use the Boot-Repair tool from an Ubuntu liveCD (or liveUSB).
What ...
356
votes
7
answers
1.2m
views
Boot drops to a (initramfs) prompts/busybox
I am running an HP pavilion dv6000 dual boot win7 and Ubuntu 12.04. (well, up until today). After a reboot, the boot process drops to the BusyBox shell and I end up at the prompt:
BusyBox v1.18.5 (...
13
votes
4
answers
35k
views
How to change boot priority?
I have a laptop with Ubuntu installed as the only OS. I also have a USB stick with a Windows 7 installation on it. I want to install Windows from the USB stick on my laptop but when I try to restart ...
258
votes
12
answers
703k
views
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Upon trying to upgrade from 10.10 to 11.04 all seemed to go well until the restart. This error message is what comes up:
Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
...
44
votes
5
answers
58k
views
Can't boot without Flash Drive plugged in
I had Ubuntu 12.04 Beta installed on my computer. When 12.04 was finally released, I made a bootable USB Flash Drive using Startup Disk Creator.
Then I decided to check if this drive works properly ...
7
votes
1
answer
9k
views
Is it possible to make Ubuntu 20.04 boot faster?
I'm sorry if my question is rather newbie, because it is - but I've never bothered to tweak my Linux much. I've managed to get my Manjaro (not without some external help) cut boot time to 8-10s (by ...
66
votes
9
answers
574k
views
error: file '/grub/i386-pc/normal.mod' not found
error: file '/grub/i386-pc/normal.mod' not found.
grub rescue>
What can I do? I just sit and stare at it.
I found my old netbook (Dell Inspiron 1010) which I have not used for about four years. ...
260
votes
10
answers
920k
views
How do I set the grub timeout and the grub default boot entry?
In Ubuntu 12.04 (or above), how do I set the GRUB time and the default OS (that I see at boot time) as I'm dual-booting Windows (7/8) and Ubuntu (12.04 or above)?
69
votes
6
answers
417k
views
Grub rescue - error: unknown filesystem
I have a multiboot system set up. The system has three drives. Multiboot is configured with Windows XP, Windows 7, and Ubuntu - all on the first drive. I had a lot of unpartitioned space left on the ...
82
votes
5
answers
258k
views
Windows 10 upgrade led to grub rescue
I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
63
votes
8
answers
237k
views
How do I get my Mac to boot from an Ubuntu USB key?
If you select "USB" and "Mac" on this download page, it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from.
I've followed them to the letter ...
118
votes
5
answers
574k
views
How to get GRUB to be the default bootloader instead of Windows Boot Manager on a UEFI laptop?
I've got an HP Pavilion Touchsmart notebook that came with Windows 8. I've upgraded to 8.1, and now I want to dual-boot an Ubuntu distribution with Windows 10. When dual-booting with Windows 8.1, the ...
93
votes
13
answers
426k
views
How can I reinstall GRUB to the EFI partition?
I want to reinstall GRUB 2 and I found these instructions:
How to Repair, Restore, or Reinstall Grub 2 with a Ubuntu Live CD or USB.
In my case, the boot loader is installed in the EFI partition. If I ...
87
votes
8
answers
274k
views
How to run a script during boot as root
I had a script that automatically enables my wifi without using networkmanager, but I don't know how to run the script as root while the system is booting. How do I make the script run automatically ...
5
votes
1
answer
5k
views
'Upgraded' to Windows 10 on dual boot, and can't boot to Ubuntu partition
I recently updated my windows 7 to 10, and destroyed grub in the process. I ran Boot-Repair on a live CD and managed to get the Windows Partition back. However grub still doesn't come up for me.
The ...
107
votes
5
answers
531k
views
How do I boot into single-user mode from GRUB?
After changing a few lines in xorg.conf, I can no longer boot Ubuntu (I assume it breaks when trying to load up X), so I need a way to boot into a single-user mode. However, there seems to be zero ...
31
votes
4
answers
94k
views
How to make grub menu appear instead grub minimal bash-like in booting?
This keep happening when I install the Ubuntu as a dual boot for my laptop. I get a black that appears when booting with the following messages.
Minimal BASH-like line editing is supported.
For ...
112
votes
14
answers
327k
views
Windows 10 upgrade kills grub and boot-repair doesn't help
I've just upgraded to Windows 10 from Windows 8.1 on my partitioned laptop that has Ubuntu 14.04 installed. Grub no longer appeared on boot so I ran boot-repair from an Ubuntu liveUSB. This didn't ...
20
votes
3
answers
26k
views
How is it easier to make a persistent live drive with Ubuntu 19.10?
Persistent live drive with a partition for persistence
There are some web sites describing
new tools
new features in [new versions of] old tools
that can create a persistent live drive from an iso ...
71
votes
4
answers
483k
views
How to start Ubuntu in Console mode
I want to know if there is a way to switch to console mode from the boot menu. I have an NVIDIA 1070 and every time there is an update, the GUI stops working. All I need to do is re-install the ...
79
votes
11
answers
132k
views
How do I improve boot speed?
I have seen many videos that make Ubuntu faster, but these methods only make desktop performance faster.
I am looking to make my computer boot faster. Is their anything I can do to make Ubuntu boot ...
18
votes
15
answers
146k
views
Not booting from USB or CD (SYSLINUX Message)
I am trying to install linux on my laptop, a Toshiba Satellite C6550-S5200. I did it once but something happened so I removed it then I had to destroy all data on hard drive so now I have nothing on ...
4
votes
2
answers
22k
views
Installing Ubuntu On Second Hard Drive
I have 2 1tb hard drives on my computer with Windows 8 on the first hard drive and nothing on the other.
I want to install Ubuntu 14 on the second hard drive. I've looked up some guides and they all ...
65
votes
3
answers
76k
views
Why disable Fast Boot on Windows 8 when having dual booting?
Why is everybody keep mentioning to disable Fast Boot on Windows 8 if you have installed alongside Ubuntu? Is it something that is recommended only for UEFI machines or is it a suggestion for Legacy ...
61
votes
9
answers
429k
views
Add Windows 10 to GRUB OS list
I recently got a computer from school. It came with Windows 8.1 installed. I then installed another copy of Windows 8.1 (so it would use the built-in Windows Pro license) and upgraded it to Windows 10....
101
votes
16
answers
225k
views
How to create a bootable USB with multiple ISO images in it
What I want is to create a bootable pen drive that shows GRUB menu and I can select any of the several bootable systems from there to install/run. I have several ISO images that I want to install in ...
63
votes
6
answers
149k
views
How to diagnose/fix very slow boot on Ubuntu 18.04
There is a long time where SSD does nothing.
How can I find the fault and fix it ?
Already checked /etc/fstab, no swap or anything wrong there (32GB of RAM, no swap)
[ 2.173492] usb 2-1.6: New ...
32
votes
4
answers
259k
views
Install on Second Hard Drive with startup boot option?
In theory, what I want to do is very simple, but I've done some google research and read some posts on this site and I'm still confused.
I want to keep win7 on my primary C:\ drive, and install ...
114
votes
6
answers
231k
views
How can I show or hide boot messages when Ubuntu starts?
Is there a way to easily turn on/off showing the boot messages (loading the services) when Ubuntu starts? Is it something in Grub2?
I am running 10.04.
39
votes
4
answers
217k
views
32-Bit UEFI Boot Support
I recently purchased a Dell Venue 8 Pro. I have read online about what it needs in order to boot into Ubuntu or any other Linux distro. From what I have gathered, what really needs to happen is 32-...
17
votes
3
answers
33k
views
I can't boot into a usable system after updates. What should I do?
Since some system updates, my machine can no longer boot properly. I am no Ubuntu guru. I do not have a week to spare diagnosing the issue. I just want to retrieve important data from this machine's ...
90
votes
7
answers
236k
views
How do I run update-grub from a LiveCD?
Okay, so I did something stupid. I was trying to clean up my Grub entries, and accidentally removed all of my Linux kernels from Grub (they're still on the hard drive). So now, obviously, Grub doesn'...
79
votes
4
answers
915k
views
GRUB rescue problem after deleting Ubuntu partition! [duplicate]
After I deleted my Ubuntu partition, I rebooted my computer and I only get a prompt:
grub rescue >
The command ls lists
(hd0) (hd0,msdos5) (hd0,msdos3) (hd0,msdos2) (hd0,msdos1) (hd1) (hd1,...
53
votes
3
answers
46k
views
Ubuntu 16.04 slow boot (apt-daily.service)
My boot is horribly slow, and I don't know why.
$ systemd-analyze
Startup finished in 10.975s (kernel) + 49.732s (userspace) = 1min 708ms
$ systemd-analyze blame
34.971s apt-daily.service
...
48
votes
5
answers
238k
views
Is it possible to boot Ubuntu using the Windows bootloader?
As noted by many people, Windows 8's UEFI requirements might will won't get in the way of installing Linux (or whatever), as the replacement bootloader will also need to be signed somehow. Some ...
26
votes
3
answers
173k
views
How to add a GRUB2 menu entry for booting installed Ubuntu on a USB drive?
I am not asking how to boot the LiveCD from a USB.
I have 2 Ubuntu installations, one on my computer's internal hard drive and another on a USB drive.
Is there a way to add a GRUB2 menu entry (to ...